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CVE-2026-116590— snappy-java: JVM crash from unchecked ranges in Snappy.arrayCopy and SnappyOutputStream.rawWrite

Quick assessment

Affected
xerial snappy-java
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

snappy-java 是 Google 开发的快速 C++ 压缩/解压缩工具 Snappy 的 Java 移植版本。在 1.1.10.9 版本之前，Snappy.arrayCopy(Object src, int offset, int byteLength, Object dest, int destOffset) 方法在将调用方提供的范围传递给原生 memcpy 函数时，未对源数组和目标数组进行任何验证。这导致负数或过大的 byteLength 和 offset 值能够读取或写入数组边界之外，进而引发 JVM

CVSS 5.9 · Medium
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I. Basic Information for CVE-2026-116590

Vulnerability Information
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Vulnerability Title
snappy-java: JVM crash from unchecked ranges in Snappy.arrayCopy and SnappyOutputStream.rawWrite
Source: CVE Program / CVE List V5
Vulnerability Description
snappy-java is a Java port of the snappy, a fast C++ compresser/decompresser developed by Google. Prior to 1.1.10.9, Snappy.arrayCopy(Object src, int offset, int byteLength, Object dest, int destOffset) passes caller-supplied ranges to native memcpy without validating either array, allowing negative or oversized byteLength and offset values to read or write outside array bounds and crash the JVM. SnappyOutputStream.rawWrite and SnappyInputStream.rawRead, including their typed-array write and read methods, pass caller-controlled ranges through this primitive, and typed-array byte-size calculations can overflow int. This issue is fixed in version 1.1.10.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对数组索引的验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
xerial snappy-java < 1.1.10.9 -

II. Public POCs for CVE-2026-116590

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III. Intelligence Information for CVE-2026-116590

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Vendor Pages for CVE-2026-116590 (1)

Other References for CVE-2026-116590 (3)

IV. Related Vulnerabilities

Same product: snappy-java
Same vendor: xerial
Same weakness: CWE-129